Finding the Fourth Proportional to 3,949.47, 5,450.56 and 2,271.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,949.47 : 5,450.56 = 2,271.29 : x
2. Step 2: Convert to fraction form
   3,949.47/5,450.56 = 2,271.29/x
3. Step 3: Cross multiply
   3,949.47x = 5,450.56 × 2,271.29
4. Step 4: Simplify right side
   3,949.47x = 12,379,769.49
5. Step 5: Solve for x
   x = 12,379,769.49/3,949.47
6. Step 6: Final answer
   x = 3,134.54